Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 264

The DOI matches its Crossref record; 52 of the 52 references it cites were found in a registry or an index.

The type VII secretion system of Staphylococcus aureus secretes a nuclease toxin that targets competitor bacteria

Open access
Cao, Zhenping, Casabona, M. Guillermina, Kneuper, Holger, Chalmers, James D., Palmer, Tracy·2016·Nature Microbiology

Abstract

The type VII protein secretion system (T7SS) plays a critical role in the virulence of human pathogens including Mycobacterium tuberculosis and Staphylococcus aureus. Here, we report that the S. aureus T7SS secretes a large nuclease toxin, EsaD. The toxic activity of EsaD is neutralized during its biosynthesis through complex formation with an antitoxin, EsaG, which binds to its C-terminal nuclease domain. The secretion of EsaD is dependent on a further accessory protein, EsaE, that does not interact with the nuclease domain, but instead binds to the EsaD N-terminal region. EsaE has a dual cytoplasmic/membrane localization, and membrane-bound EsaE interacts with the T7SS secretion ATPase, EssC, implicating EsaE in targeting the EsaDG complex to the secretion apparatus. EsaD and EsaE are co-secreted, whereas EsaG is found only in the cytoplasm and may be stripped off during the secretion process. Strain variants of S. aureus that lack esaD encode at least two copies of EsaG-like proteins, most probably to protect themselves from the toxic activity of EsaD secreted by esaD+ strains. In support of this, a strain overproducing EsaD elicits significant growth inhibition against a sensitive strain. We conclude that the T7SS may play unexpected and key roles in bacterial competitiveness.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/nmicrobiol.2016.183

Cites

52 of 52 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 52 references

Cited by

See all 264

Metadata

Authors
Cao, Z., Casabona, M. G., Kneuper, H., Chalmers, J. D., & Palmer, T.
Venue
Nature Microbiology
Published
2016-10-10
Volume
2
Issue
1
Pages
16183-16183
ISSN
2058-5276 (ISSN-L)
OpenAlex
W2531513855
Cited by
264
References
52
FWCI
21.00
Type
journal article
Language
en
Open access
green

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: The type VII secretion system of Staphylococcus aureus secretes a nuclease toxin that targets competitor bacteria. https://app.cochat.ai/papers/10.1038/nmicrobiol.2016.183
The paper
Cao, Z., Casabona, M. G., Kneuper, H., Chalmers, J. D., & Palmer, T. (2016). The type VII secretion system of Staphylococcus aureus secretes a nuclease toxin that targets competitor bacteria. Nature Microbiology. https://doi.org/10.1038/nmicrobiol.2016.183

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.